Department of Cultivation (1999 - Present)
Agricultural Engineering, Agriculture
, McGill,
Agricultural Engineering, Agriculture
, Tarbiat Modares University,
Agricultural Engineering, Agriculture
, Shiraz university,
Name: Ali Family Name: SOROOSHZADEH Date of Birth: 1960 Present Position: Associate Prof. of Agronomy Dept. College of Agriculture, Tarbiat Modares University Mailing Address: Tarbiat Modares University P.O. Box: 14115-336, 1986 B.Sc.in Agronomy at Shiraz University Shiraz, Iran. 1989 M.Sc.in Agronomy at Tarbiat Modares University,Tehran, Iran. 1997 Ph.D.in Plant physiology at McGill University,Montreal, Canada
Having increased the temperature of different regions, global climate change can affect plants’ growth and development. This study aimed to explore the effects of high temperature on sugar beet (Beta vu-lgaris L.) performance at seedling stage (6–8 leaf stage) in two climatic areas of Iran, Karaj and Moghan, with different relative humidity (RH). Eight sugar beet genotypes, S1-92521, SB26, SHR. 02. P4, OT 607, S1‑92685, S1-92615, SB33-H-1 and 31714, were sown in both sites at two dates, April and July as control and high temperature stress treatments, respectively. Maximal quantum yield of PSII photochemistry in dark (F v/F m) decreased by high temperature in both sites, with genotypes S1-92521 and OT 607 showing the highest value in
Water deficit is the main reason for sugar yield losses in semi-arid areas. Triazole derivatives may mitigate the harmful impacts of water stress. Therefore, this study aimed to assess the effect of tebuconazole (TEB) application on antioxidants, root quality traits, and sugar yield under drought stress conditions. The treatments included three levels of irrigation set according to crop evapotranspiration (ETC): 100%, 75%, and 50% ETC, as well as three levels of TEB (0, 25, and 50 mg L-1). While significantly increasing antioxidant and alpha-amino-nitrogen (α-amino-N) contents, limited irrigation decreased total chlorophyll content, net photosynthesis rate, leaf relative water content, the weight of roots, and sugar yield. In contrast, TEB
The continuous trend of global warming and increasing interest toward cultivating sugar beet (Beta vulgaris L. ssp. vulgaris var. altissima D?ll) in tropical regions led us to conduct this study to investigate the effect of high temperature on sugar beet at initial growth stages. Thirty one genotypes were incubated at two temperatures (20 C and 30 C) in laboratory for germination test. The same genotypes were assessed for physiological parameters at 30 C in greenhouse, too. Increasing temperature decreased germination indices with a high variability among the genotypes. Seed vigor index and seminal root length were decreased higher than other indices. The genotypes with higher greenness index had higher total dry mass, leaf area and leaf te
Silicon (Si) can mitigate the deleterious impacts of various types of stresses on field crops. However, the potential of nano-silicon (nano-Si) in improving water stress and the relevant mechanisms remain unclear. Therefore, here, we examined the combined impacts of nano-Si and various irrigation regimes on antioxidant systems, osmolytes, photosynthesis-related parameters, and growth of sugar beet in a field trial. Treatments included three supplemental irrigation rates (I1, I2, and I3) arranged based on the crop evapotranspiration (100% ETC, 75% ETC, and 50% ETC) and three doses of nano-Si: 0, 1, and 2?mM. Irrigation regime treatments were performed at the six-to eight-leaf stage (49?days after sowing), which continued until
Phytohormones salicylic acid and strigolactones play critical roles in mediating plant responses to environmental stress including drought stress. This study investigated whether foliar application of salicylic acid and strigolactones in the form of GR24 will improve the drought tolerance of winter wheat (T-riticum aestivum L.) plants. Exogenous application of strigolactone and salicylic acid increased proline and soluble sugar content as well as stomatal conductance, photosynthesis and transpiration rate of wheat plants. Higher amounts of all above mentioned characteristics are indicative of the higher drought tolerance of hormone-treated plants. In this experiment, application of hormones decreased the drought-induced rise in the content
Saffron is one of the most important crops and medicinal plants in Iran. The research was accomplished in order to investigate the effects of Benzyl aminopurine hormone treatment, application of bio-fertilizers (Phosphate Barvar2 and mycorrhiza) and maternal corm weight on the quantitative indices of saffron cormlets and flowers yield as a factorial based on randomized complete block design with three replications was conducted in Yasouj region. Experimental treatments consisted of large (7.1-10 g) and small (4-7 g) corms, priming with benzyl aminopurine at concentrations of 0, 250 and 500 mg/l and biofertilizer levels (no fertilizer, Mycorrhiza (Glomus mossea) and fertilizer, Phosphate Barvar2) were used. The results showed that all quanti
There is ample evidence to illustrate the role of triazoles and silicon in mitigating the effects of abiotic stresses. However, the potential of nano-silicon and tebuconazole and their possible interactions in ameliorating the effects of drought stress and related mechanisms in sugar beet have not been investigated so far. Therefore, a split-plot factorial experiment based on randomized complete block design with four replications was carried out at Motahari Research Station of Sugar Beet Seed Institute (SBSI), Karaj, Iran over two seasons, 2016 and 2017. Three irrigation treatments including 100, 75, and 50% of plant evapotranspiration (normal, mild stress, and severe stress, respectively) were assigned to the main plots. Subplots were com
To evaluate the effect of nutrient elements, methionine amino acid and corm weight on the emergence of saffron, an experiment was conducted as a randomized complete block design in two years (during 2014-2015) in Research Farm, Faculty of Agriculture, Tarbiat Modarres University, Tehran, Iran. Treatments were consisted of mineral nutrients in form of liquid fertilizer at four concentrations (10, 20, 30, 40 ml.L-1), Methionine amino acid at four concentrations (10, 20, 30, 40 g.L-1), distilled water, control treatment without water, corm weight at two weights small (3-5 g) and large (7-9 g). All corms were immersed 48 hr in nutrients or methionine (except control treatment) before planting. To study emergence percentage, a simulated exponent
Cadmium (Cd) is a major pollutant in soils as a result of extensive use of fertilizers, mining and industrial discharges. Zinc (Zn) and certain bacterial species have been known to alleviate Cd toxicity in plants. In this study, the individual and combined effects of the application of Zn and Pseudomonas species with the aim of reducing Cd stress in wheat cultivars were investigated. Plants (durum wheat and bread wheat) were exposed to different concentrations of Cd and Zn, and either P. putida or P. fluorescens in a growth chamber. Concentrations of Zn, Cd, chlorophyll (Chl), carotenoid, hydrogen peroxide (H2O2), and malondialdehyde (MDA), as well as antioxidant enzyme activities were assayed. The addition of Zn in soils reduced the toxic
This research was carried out in order to investigate the effect of foliar application of potassium nitrate and polyamines putrescine, on growth and biochemical characteristics of rapeseed (Brassica napus) under waterlogging condition. An experiment was conducted in a factorial arrangement based on completely randomized design with four replication. The factors include waterlogging stress conditions on two levels (I 0= no flooding, I 1= flooded for 10 days) and foliar application of potassium nitrate and polyamine putrescine in five levels (M 0= no spraying, M 1= concentration of 10 ppm potassium nitrate, M 2= concentration of 20 ppm potassium nitrate, M 3= concentration of 10 ppm polyamines putrescine, M 4= 20 ppm concentration of polyamin
Chitosan and its components have beneficial effects on a wide variety of plant species. Yet, their effects on wheat plants under drought stress are not well known. So, a field experiment was laid out in order to evaluate the effect of chitosan nanoparticles (NPs) on wheat. The wheat seeds were sown in plots. Then, the chitosan NPs were added to them through soil and foliar application at tillering, stem elongation, and heading stages. Results indicated that the drought stress significantly decreased majority of the studied traits compared to the normal irrigation. Application of the NPs especially 90 ppm increased leaf area (LA), relative water content (RWC), chlorophyll content, photosynthesis rate, catalase (CAT), and superoxide dismuta
This research was carried out in order to investigate the effect of foliar application of potassium nitrate and polyamines putrescine, on growth and biochemical characteristics of rapeseed (Brassica napus) under waterlogging condition. An experiment was conducted in a factorial arrangement based on completely randomized design with four replications. The factors included waterlogging stress conditions on two levels (I0= no flooding, I1= flooded for 10 days) and foliar application of potassium nitrate and polyamine putrescine in five levels (M0= no spraying, M1= concentration of 10 ppm potassium nitrate, M2= concentration of 20 ppm potassium nitrate, M3= concentration of 10 ppm polyamines putrescine, M4= 20 ppm concentration of polyamines pu
As a step towards the profitable employment of nanoparticles (NPs) in agriculture, effects of chitosan NPs was probed on barley plants under late season drought stress. A factorial experiment was performed based on a randomized complete block design with three replications. The experimental factors included the chitosan NPs concentrations (0 (control), 30, 60 and 90 ppm), application methods (foliar and soil application) and irrigation regimes (well-watered and withholding of irrigation for 15 days after pollination). The barley seeds were separately planted in pots. Then, the NPs were added to them through the soil and foliar application at three stages. The results indicated that using the chitosan NPs, especially 60 and 90 ppm, significa
The main objectives of this research were to determine the effects of applying organic and chemical fertilizers under different irrigation regimes on sunflower (Helianthus annuus L.) morphological traits, yield components, grain yield and grain quality. The experiment was conducted as spilt plots based on a randomized complete block design with three replicates. Irrigation treatments at three levels (well-irrigated, mild and severe drought stress) were allocated to main plots and eight fertilizer treatments (urea (F1), urea+ composted cattle manure (F2), zeocompost (F3), vermicompost (F4), zeolite-amended chicken manure (Z-ACM)(F5), zeocompost+ vermicompost (F6), zeocompost+ Z-ACM (F7) and vermicompost+ Z-ACM (F8)) were randomized in sub-pl
Chitosan is a glucosamine polysaccharide deacetylated form of chitin species and could be used as biotic elicitor to improve secondary metabolites and as a fertilizer it controls the release of chemical compounds of toxins and stimulates germination and plant growth. Thus, to evaluate the effect of chitosan NPs on barley plants under late season drought stress, a factorial pot experiment was performed based on a randomized complete block design with three replications. The experimental factors were NPs concentrations at 4 levels (0, 30, 60 and 90 ppm), method of usage at 2 levels (foliar and soil application) and irrigation regimes at 2 levels (normal irrigation and with-holding irrigation 15 days after pollination). Experimental procedure
see more details (Aria, Rosaflor and Paya), two experiments were conducted in laboratory (20-44 C; at germination stage) and greenhouse (30 C; at seedling establishment stage) in factorial layout, based on completely randomized design in Sugar Beet Seed Institute, Karaj, Iran iran Subject Category: Geographic Entitiessee more details, in 2015 and 2016. Severe loss of germination of sugar beet cultivars was obtained at 32 C, and at 38 C, no any normal germination observed. The maximum germination percentage of Rosaflor and Aria cultivars obtained at 20 C, while that of Paya obtained at 26 C. Paya and Aria cultivars had the lowest (41%) and the highest (65%) decrease in germination at 32 C, respectively, in comparison to their maximum germina
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